Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Request the space the legend requires to be drawn. This is returned as a vtkRect4f, with the corner being the offset from Point, and the width/ height being the total width/height required by the axis. In order to ensure the numbers are correct, Update() should be called first.